Begin with a homemade or commercial feeder.  We have a fun and huge selection of birdhouses and feeders.  Then purchase a large bag of wild bird feed.  Birds seem to "find" the food mostly easily when it's about four feet off the ground.  After a while, you may observe that the particular birds in your ara prefer more of a particular kind of seed.  You can also set out chunks of suet in a wire cage to provide high energy food in cold weather.

In cold climates either feed birds consistenly or don't start feeding them at all.  They will come to depend on you as a source of food.  Birds love a bit of water to bathe in and drink.  They need places near the feeding area in which to perch or hide from predators.  If you don't have any trees or shrubs for this purpose then plant some in huge garden planters so you can move them where they need to be.

Attract hummingbirds by planting the kinds of flowers they prefer.  Many of them are partial to red and orange flowers, and they like long, tubular flowers such as salvias and trumpet vines.  They also like a moving water source, such as a fountain or waterfall.  Arizona Pottery also sells some beautiful glass hummingbird feeders.

Hang bird feeders and hummingbird potted plants close to your window so you can enjoy the show.  If you hang a lace curtain in the window, you can watch the birds at close range without disturbing them.